A nation that can't control its energy sources can't control its future.

Clem (Clementa Pinckney) understood that justice grows out of recognition of ourselves, in each other.

Those who are already feeling the effects of climate change don't have time to deny it - they're busy dealing with it.

I marched with you in the streets of Chicago to meet our immigration challenge. I fought with you in the Senate for comprehensive immigration reform. And I will make it a top priority in my first year as President.

What the Paris agreement now does is say to China and India and other countries that are potentially polluting, come on board. Let's work together so you guys do the same thing.

California is our biggest economy. California is our biggest agricultural producer. So what happens here matters to every working American.

I'm measuring my actions against that inner voice that for me at least is audible, is active, it tells me where I think I'm on track and where I think I'm off track.